Maintenance; Maintenance Schedule; Life Of Operator Feature (Odometer/Cycle Counter); Brake (If Present) - Chamberlain GH Installation Manual

WARNING

MAINTENANCE

MAINTENANCE SCHEDULE

CAUTION
For use with Maintenance Alert System.
Check at the intervals listed in the following chart:
ITEM
Drive Chain

AVERTISSEMENT

Sprockets
Clutch
ATTENTION
Belt
Fasteners
Manual Disconnect
Bearings and Shafts
LiftMaster Monitored
Entrapment Protection
(LMEP)
Use SAE 30 Oil (Never use grease or silicone spray).
• Do not lubricate motor. Motor bearings are rated for
continuous operation.
• Do not lubricate clutch or V-belt.
Repeat ALL procedures.
Inspect and service whenever a malfunction is observed or
suspected.
ADVERTENCIA

LIFE OF OPERATOR FEATURE (ODOMETER/CYCLE COUNTER)

The operator is equipped with an odometer to show how many months and cycles the operator has performed from the time it as
installed. This feature can help determine how long the operator has been in service.
PRECAUCIÓN
1. Start with the door in the closed position.
2. Turn the SELECTOR DIAL to DIAG (diagnostic mode).
3. Press and release the MAS button on the logic board.
4. Press and release the MRT button on the logic board.
5. The open and close lights will flash. OPEN for every 5,000 cycles and CLOSE for every 3 months.
6. Return the SELECTOR DIAL to the desired wiring type.
NOTE: If the operator has not reached 5,000 cycles or 3 months, there will be no indications.

BRAKE (IF PRESENT)

A solenoid brake is available as an option for some models. The
brake is adjusted at the factory and should not need additional
adjustment for the life of the brake assembly.
Inspect the brake pad and replace brake assembly when
necessary.
NOTE: Your operator may look different than the operator shown.
PROCEDURE
Check for excessive slack.
Check and adjust as required.
Lubricate.
Check set screw tightness.
Check and adjust as required.
Check condition and tension.
Check and tighten as required.
Check and operate.
Check for wear and lubricate.
Check alignment and
functionality.
WARNING
WARNING WARNING
To avoid SERIOUS personal INJURY or DEATH:
• Disconnect electric power BEFORE performing ANY
adjustments or maintenance.
• ALL maintenance MUST be performed by a trained door
systems technician.
EVERY 3
MONTHS OR
EVERY MONTH 5,000 CYCLES
AVERTISSEMENT
AVERTISSEMENT

HOW TO ORDER REPAIR PARTS

OUR LARGE SERVICE ORGANIZATION SPANS AMERICA
Installation and service information are available.
Call our TOLL FREE number:
1-800-528-2806
www.liftmaster.com
ADVERTENCIA
ADVERTENCIA
36
EVERY 6 EVERY 12
MONTHS OR MONTHS OR
10,000 CYCLES 20,000 CYCLES
Maintenance